Flexural impact response and damage detection of composite sandwich beam with various PVC foam cores


Çalışkan U. , Apalak M. K.

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES, vol.29, no.9, pp.1276-1293, 2022 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 9
  • Publication Date: 2022
  • Doi Number: 10.1080/15376494.2020.1815110
  • Title of Journal : MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
  • Page Numbers: pp.1276-1293
  • Keywords: Composite sandwich beam, 3D damage anaysis, impact damage, micro-Ct, VUMAT, PROGRESSIVE FAILURE, DYNAMIC-RESPONSE, BEHAVIOR

Abstract

This article investigates the flexural impact and damage behavior of composite sandwich beam in terms of foam core effect using the micro-computerized tomography, Micro-CT. Foam core is dominant on the damage behavior of sandwich structures. As the python scripting language was used parametric modeling, the intra-laminar damage was created with the three-dimensional explicit finite element subroutine and implemented to ABAQUS as VUMAT via FORTRAN. The results of the FEM were found to agree well with experimental observations. Notably, the change in foam core density has a very high effect on contact force levels, impact trend and damage progress.